Lauraine
I assume that you have used the "_" to join words so that they sweep at the same time. If even joining several words cannot catch up with the music, you most be making some veery fast CDGs! ;-) Gloria Estefan's Conga can be swept properly with the "_",
My problem sometimes is slowing the sweep (Spanish Boleros are slow and very melodious love songs). In that case I use the "*" to split the words. It works very well.
Happy CDGing!
BANDL